MCQOPTIONS
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MCQOPTIONS
This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Vlsi knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Fast gate can be built by keeping ________ |
| A. | low output capacitance |
| B. | high on resistance |
| C. | high output capacitance |
| D. | input capacitance does not affect speed of the gate |
| Answer» B. high on resistance | |
| 2. |
Increasing fan-out ____________ the propagation delay. |
| A. | increases |
| B. | decreases |
| C. | does not affect |
| D. | exponentially decreases |
| Answer» B. decreases | |
| 3. |
What is the input resistance of CMOS inverter? |
| A. | high |
| B. | low |
| C. | very low |
| D. | none of the mentioned |
| Answer» B. low | |
| 4. |
CMOS inverter has ______ output impedance. |
| A. | low |
| B. | high |
| C. | very high |
| D. | none of the mentioned |
| Answer» B. high | |
| 5. |
In CMOS inverter, transistor is a switch having ________ |
| A. | infinite on resistance |
| B. | finite off resistance |
| C. | buffer |
| D. | infinite off resistance |
| Answer» C. buffer | |
| 6. |
Mobility depends on ________ |
| A. | Transverse electric field |
| B. | Vg |
| C. | Vdd |
| D. | Channel length |
| Answer» B. Vg | |
| 7. |
If n = p, then Vin is equal to ________ |
| A. | Vdd |
| B. | Vss |
| C. | 2Vdd |
| D. | 0.5Vdd |
| Answer» E. | |
| 8. |
If both the transistors are in saturation, then they act as ________ |
| A. | current source |
| B. | voltage source |
| C. | divider |
| D. | buffer |
| Answer» B. voltage source | |
| 9. |
In the region where inverter exhibits gain, the two transistors are in _______ region. |
| A. | linear |
| B. | cut-off |
| C. | non saturation |
| D. | saturation |
| Answer» E. | |
| 10. |
If p-transistor is conducting and has small voltage between source and drain, then it is said to work in ________ |
| A. | linear region |
| B. | saturation region |
| C. | non saturation resistive region |
| D. | cut-off region |
| Answer» D. cut-off region | |
| 11. |
If n-transistor conducts and has large voltage between source and drain, then it is said to be in _____ region. |
| A. | linear |
| B. | saturation |
| C. | non saturation |
| D. | cut-off |
| Answer» C. non saturation | |
| 12. |
CMOS inverter has ______ regions of operation. |
| A. | three |
| B. | four |
| C. | two |
| D. | five |
| Answer» E. | |